Last year, Selena revealed that she'd had a kidney transplant to help manage her Lupus, an auto-immune condition that sees the person's immune system turn against the individual, attacking their organs. 60% of lupus sufferers have kidney complications, which can be fatal.

After receiving the news about her white cell count, a family member drove Selena to Cedars-Sinai Medical Center in Los Angeles, with sources calling her "despondent and emotional".